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SSC CHSL 2021 PYQ — Question 22

SSC CHSL - 5 Aug 2021 - Shift 2 • English • Q22

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In the following passage, some words have been deleted. Select the most appropriate option to fill in each blank.

In the generation of hydroelectric power, water is collected or (1) ______ at a higher elevation and led downward (2) ______ large pipes to a lower elevation; the difference in elevations is (3) ______ as the head. At the end of its passage down the pipes, the falling water (4) ______ turbines to rotate. The turbines in turn drive generators, (5) ______ convert the turbines’ mechanical energy into electricity.

Select the most appropriate option to fill in blank no.2.

Show answer & explanation

Correct answer: B

Explanation

The correct answer is Option 2. i.e. through.

  • The word "through" in this context is used as a preposition that indicates movement from one side or point to another while passing within or inside something.
  • In this sentence, "through" is used to convey the idea that the water moves from the higher elevation to the lower elevation by passing within or inside the large pipes.
  • It clarifies the path or means by which the water flows to generate hydroelectric power.